want to tune my car any suggestions

[Cutlassjim]

I've got ecuflash, evoscan, and a tactrix cable. Let me practice learning how to use it on your car!

This is all you need!

The factory Mitsu ECU is extremely powerful. We swapped a 3.5 6G74 into my friends 01 Eclipse and used a Tactrix 2.0 cable and the thing is a beast.

[g96nt]

i thought your plans were to boost the 4g64?

This is *the* best response you could have gotten.
The 4g64 is a strong motor. you can easily get a 75% power gain from basic parts on the 4g64, and not upgrading pistons/rods.
Most of the Galant guys are getting 230-ish whp on their cars with off-the-shelf mitsu parts, and some VERY minor fabrication. It's pretty comon on the motors, and anyone with experience with one will tell you to go FI on the motors.

back to the original question, you don't need to tune your car; it's MAF.
the ecu will compensate for the added airflow, and it'll be fine how it is.
If the 3g maf is like the 2g, you can back out the plug, and lean it out a bit, and you'll be juuuuust fine. don't spend a ton of $$ on tuning for bolt-ons on a karmen vortex ECU.

on the other side, if someone wants to flash your ECU for close to nothing, you could do that (add some timing, lean 'er out., bump up the rev limit)...

[02eclipsegs]

This is *the* best response you could have gotten.
The 4g64 is a strong motor. you can easily get a 75% power gain from basic parts on the 4g64, and not upgrading pistons/rods.
Most of the Galant guys are getting 230-ish whp on their cars with off-the-shelf mitsu parts, and some VERY minor fabrication. It's pretty comon on the motors, and anyone with experience with one will tell you to go FI on the motors.

back to the original question, you don't need to tune your car; it's MAF.
the ecu will compensate for the added airflow, and it'll be fine how it is.
If the 3g maf is like the 2g, you can back out the plug, and lean it out a bit, and you'll be juuuuust fine. don't spend a ton of $$ on tuning for bolt-ons on a karmen vortex ECU.

on the other side, if someone wants to flash your ECU for close to nothing, you could do that (add some timing, lean 'er out., bump up the rev limit)...

well guys i appreciate all of the info and yes i do plan on boosting it down the road just looking for a little more right now. my overall plan is to boost it on 15psi with evo8 head and cams after rebuilding the motor since it has over 200k

[Leafy]

This is *the* best response you could have gotten.
The 4g64 is a strong motor. you can easily get a 75% power gain from basic parts on the 4g64, and not upgrading pistons/rods.
Most of the Galant guys are getting 230-ish whp on their cars with off-the-shelf mitsu parts, and some VERY minor fabrication. It's pretty comon on the motors, and anyone with experience with one will tell you to go FI on the motors.

back to the original question, you don't need to tune your car; it's MAF.
the ecu will compensate for the added airflow, and it'll be fine how it is.
If the 3g maf is like the 2g, you can back out the plug, and lean it out a bit, and you'll be juuuuust fine. don't spend a ton of $$ on tuning for bolt-ons on a karmen vortex ECU.

on the other side, if someone wants to flash your ECU for close to nothing, you could do that (add some timing, lean 'er out., bump up the rev limit)...

Can I hit you? Almost every car will see noticeable gains with a tune, the factory timing is almost never pushed to where it needs to be, even on high octane settings. And car are almost always running rich when on power for engine longevity (though this has its ways of shortening engine life). And maf's arent magical fairy dust, they can only compensate for extra airflow if there were tuned in that airflow range at the factory. Which they wont have been since they couldnt have experienced that kind of airflow with factory parts, at best you get the calibration engineer's best guess at what fueling it needs at those airflows.

[Th3Juggernaut]

^^ Mass Airflow Fight

[t-casper]

lol...^^

[Cutlassjim]

Can I hit you? Almost every car will see noticeable gains with a tune, the factory timing is almost never pushed to where it needs to be, even on high octane settings. And car are almost always running rich when on power for engine longevity (though this has its ways of shortening engine life). And maf's arent magical fairy dust, they can only compensate for extra airflow if there were tuned in that airflow range at the factory. Which they wont have been since they couldnt have experienced that kind of airflow with factory parts, at best you get the calibration engineer's best guess at what fueling it needs at those airflows.

Is this another Kyle Tarry? What is it with you WPI boys?

[OVRBST]

He does have a point. MAF and O2 feedback clean up a tune nicely, but if it's not dialed in right it can rob a TON of power in open loop. Also the timing in those cars is catered around 87 octane so there is room for improvement.

[Leafy]

Is this another Kyle Tarry? What is it with you WPI boys?

Did he have a dsm?